If you're getting frequent disconnections or lag spikes, try a few different Pingzapper servers by editing your game profile (right click and choose edit) and select "manual server selection".

As a general rule, using a Pingzapper server closest to the game server will give the best performance while using a Pingzapper server closest to your own location increase stability.

If you notice you're having issues on more than one Pingzapper server, there might be a deeper network issue. In this case, you may want to try a network test.